how can i use Calendar class
package com.codegym.task.task08.task0816;
import javax.swing.text.html.HTMLDocument;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.time.Month;
import java.util.Date;
import java.util.HashMap;
import java.util.Locale;
import java.util.Map;
import java.util.Calendar;
import java.util.Iterator;
/*
Kind Emma and the summer holidays
*/
public class Solution {
public static HashMap<String, Date> createMap() throws ParseException {
DateFormat df = new SimpleDateFormat("MMMMM d yyyy", Locale.ENGLISH);
HashMap<String, Date> map = new HashMap<String, Date>();
map.put("Stallone", df.parse("JUNE 1 1980"));
//write your code here
map.put("Mehak", df.parse("JULY 1 1999"));
map.put("Hira", df.parse("AUGUST 10 2000"));
map.put("Nabeela", df.parse("JUNE 20 2007"));
map.put("Shakeela", df.parse("JANUARY 1 1980"));
map.put("Momna", df.parse("JULY 1 1980"));
map.put("Saira", df.parse("MARCH 1 1980"));
map.put("lechi", df.parse("APRIL 1 1980"));
map.put("micki", df.parse("MAY 1 1980"));
map.put("shona", df.parse("JUNE 1 1980"));
return map;
}
public static void removeAllSummerPeople(HashMap<String, Date> map) throws ParseException {
//write your code here
DateFormat df = new SimpleDateFormat("MMMM", Locale.ENGLISH);
Date startDate = df.parse("JUNE ");
Date endDate = df.parse("AUGUST ");
for (Iterator<Map.Entry<String, Date>> ma = map.entrySet().iterator(); ma.hasNext();)
{
Map.Entry<String,Date> d = ma.next();
if(d.getValue().after(startDate) || d.getValue().before(endDate))
{
ma.remove();
}
}
}
public static void main(String[] args) throws Exception{
HashMap<String, Date> map = new HashMap<String, Date>();
map = createMap();
removeAllSummerPeople(map);
System.out.println(map);
}
}